/**
 * Created by PanJiaChen on 16/11/18.
 */

import i18n from "@/lang";

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime(time, cFormat) {
  if (arguments.length === 0 || !time) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string')) {
      if ((/^[0-9]+$/.test(time))) {
        // support "1548221490638"
        time = parseInt(time)
      } else {
        // support safari
        // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
        time = time.replace(new RegExp(/-/gm), '/')
      }
    }

    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
    return value.toString().padStart(2, '0')
  })
  return time_str
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return (
      d.getMonth() +
      1 +
      '月' +
      d.getDate() +
      '日' +
      d.getHours() +
      '时' +
      d.getMinutes() +
      '分'
    )
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name] = val
    return rs
  })
  return obj
}

/**
 * @param {string} input value
 * @returns {number} output value
 */
export function byteLength(str) {
  // returns the byte length of an utf8 string
  let s = str.length
  for (var i = str.length - 1; i >= 0; i--) {
    const code = str.charCodeAt(i)
    if (code > 0x7f && code <= 0x7ff) s++
    else if (code > 0x7ff && code <= 0xffff) s += 2
    if (code >= 0xDC00 && code <= 0xDFFF) i--
  }
  return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
  const newArray = []
  for (let i = 0; i < actual.length; i++) {
    if (actual[i]) {
      newArray.push(actual[i])
    }
  }
  return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
  if (!json) return ''
  return cleanArray(
    Object.keys(json).map(key => {
      if (json[key] === undefined) return ''
      return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
    })
  ).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
  const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
  if (!search) {
    return {}
  }
  const obj = {}
  const searchArr = search.split('&')
  searchArr.forEach(v => {
    const index = v.indexOf('=')
    if (index !== -1) {
      const name = v.substring(0, index)
      const val = v.substring(index + 1, v.length)
      obj[name] = val
    }
  })
  return obj
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
  const div = document.createElement('div')
  div.innerHTML = val
  return div.textContent || div.innerText
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
  if (typeof target !== 'object') {
    target = {}
  }
  if (Array.isArray(source)) {
    return source.slice()
  }
  Object.keys(source).forEach(property => {
    const sourceProperty = source[property]
    if (typeof sourceProperty === 'object') {
      target[property] = objectMerge(target[property], sourceProperty)
    } else {
      target[property] = sourceProperty
    }
  })
  return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
  if (!element || !className) {
    return
  }
  let classString = element.className
  const nameIndex = classString.indexOf(className)
  if (nameIndex === -1) {
    classString += '' + className
  } else {
    classString =
      classString.substr(0, nameIndex) +
      classString.substr(nameIndex + className.length)
  }
  element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type) {
  if (type === 'start') {
    return new Date().getTime() - 3600 * 1000 * 24 * 90
  } else {
    return new Date(new Date().toDateString())
  }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
  let timeout, args, context, timestamp, result

  const later = function() {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = setTimeout(later, wait - last)
    } else {
      timeout = null
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args)
        if (!timeout) context = args = null
      }
    }
  }

  return function(...args) {
    context = this
    timestamp = +new Date()
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, args)
      context = args = null
    }

    return result
  }
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
  if (!source && typeof source !== 'object') {
    throw new Error('error arguments', 'deepClone')
  }
  const targetObj = source.constructor === Array ? [] : {}
  Object.keys(source).forEach(keys => {
    if (source[keys] && typeof source[keys] === 'object') {
      targetObj[keys] = deepClone(source[keys])
    } else {
      targetObj[keys] = source[keys]
    }
  })
  return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
  return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString() {
  const timestamp = +new Date() + ''
  const randomNum = parseInt((1 + Math.random()) * 65536) + ''
  return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
  return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
  if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
  if (hasClass(ele, cls)) {
    const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
    ele.className = ele.className.replace(reg, ' ')
  }
}

// 自动下载图片
export function downloadImage(imgsrc, name) { //下载图片地址和图片名
  const image = new Image();
  // 解决跨域 Canvas 污染问题
  image.setAttribute("crossOrigin", "anonymous");
  image.onload = function() {
    const canvas = document.createElement("canvas");
    canvas.width = image.width;
    canvas.height = image.height;
    const context = canvas.getContext("2d");
    context.drawImage(image, 0, 0, image.width, image.height);
    const url = canvas.toDataURL("image/png"); //得到图片的base64编码数据
    const a = document.createElement("a"); // 生成一个a元素
    const event = new MouseEvent("click"); // 创建一个单击事件
    a.download = name || "photo"; // 设置图片名称
    a.href = url; // 将生成的URL设置为a.href属性
    a.dispatchEvent(event); // 触发a的单击事件
  };
  image.src = imgsrc;
}

// 保留小数点
export function fixed($num) {
  return Math.floor($num * 100) / 100;
}

export function deepCopy(param) {
  return JSON.parse(JSON.stringify(param));
}

// 时间格式方法封装，兼容 IOS
Date.prototype.Format = function (fmt) { //author: meizz
  const o = {
    "m": this.getMonth() + 1, //月份
    "d": this.getDate(), //日
    "H": this.getHours(), //小时
    "i": this.getMinutes(), //分
    "s": this.getSeconds(), //秒
    "q": Math.floor((this.getMonth() + 3) / 3), //季度
    "S": this.getMilliseconds() //毫秒
  };
  if (/(Y)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + ""));
  Object.keys(o).forEach(k => {
    let d = o[k];
    // 这几个字符使用两个字符（单位数的前面加0）
    if (['m', 'd', 'H', 'i', 's'].indexOf(k) >= 0) {
      d = d.toString().length === 1 ? '0' + d : d;
    }
    if (new RegExp("(" + k + ")").test(fmt)) {
      //
    }
    fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (d) : (("00" + d).substr(("" + d).length)));
  });
  return fmt;
};
// 支持字符串，时间戳，Date实例
export function dateFormat(formatter, date = null) {
  if (!date) {
    return (new Date()).Format(formatter);
  }else if (typeof date === "string") {
    if (date.indexOf(".") > -1) {
      // 有些日期接口返回带有.0。
      date = date.substring(0, date.indexOf("."));
    }
    // 解决IOS上无法从dateStr parse 到Date类型问题
    date = date.replace(/-/g, '/');
    return (new Date(date)).Format(formatter);

  } else if(date instanceof Date) {
    return date.Format(formatter);
  } else {
    return (new Date(date)).Format(formatter);
  }
}


export function copyToClipboard(content) {
  return new Promise((resolve, reject) => {
    const input = document.createElement('input');
    input.setAttribute('readonly', 'readonly');
    input.setAttribute('value', content);
    document.body.appendChild(input);
    input.select();
    if (document.execCommand('copy')) {
      document.execCommand('copy');
      // console.log('复制成功');
      resolve();
    } else {
      // console.log('复制失败');
      reject();
    }
    document.body.removeChild(input);
    // console.log('复制操作，删除元素成功');
  })
}

/**
 * 随机生成字符串
 * @param length
 * @returns {string}
 */
export function generateRandomString(length = 16){
  const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
  let str = "";
  for (let i = 0; i < length; i++) {
    const randomIndex = Math.floor(Math.random() * chars.length);
    str += chars[randomIndex];
  }
  return str;
}

/**
 * 验证手机号是否正确
 * @param mobile
 * @returns {boolean}
 */
export function isMobile(mobile){
  return /^1\d{10}$/.test(mobile)
}

/**
 * 验证是不是邮箱
 * @param email
 * @returns {boolean}
 */
export function isEmail(email){
  return /^(\w-*\.*)+@(\w-?)+(\.\w{2,})+$/.test(email);
}

/**
 * 美客多官方名
 * @returns {string}
 */
export function getMercadoName(){
  return 'MercadoLibre';
}

/**
 * falabella官方名
 * @returns {string}
 */
export function getFalabellaName(){
  return 'Falabella';
}

/**
 * 根据类型获取对应的平台的名字
 * @param accountTypeNum
 * @returns {string}
 */
export function getPlatformNameByAccountNum(accountTypeNum){
  switch (accountTypeNum){
    case 1:
      return getMercadoName()
    case 2:
      return getFalabellaName()
    case 3:
      return getShopeeName()
  }
}



/**
 * 虾皮的官方名
 * @returns {string}
 */
export function getShopeeName(){
  return 'Shopee';
}


/**
 * 获取虾皮的短名字
 * @returns {string}
 */
export function getSpName(){
  return 'SP'
}

/**
 * 获取对应的颜色样式
 * @param accountType
 * @returns {{"sp-color-text": boolean, "fa-color-text": boolean}}
 */
export function getPlatformTextColor(accountType){
  return {
    'fa-text-color': accountType === getFalabellaName(),
    'sp-text-color': accountType === getShopeeName(),
  }
}

/**
 * 获取充值方式的对应字符
 * @param payType
 * @returns {VueI18n.TranslateResult}
 */
export function getPayTypeStr(payType){
  switch (payType){
    case 11:
      return i18n.t('pay.wechatPay');
    case 12:
      return i18n.t('pay.AliPay');
    case 13:
      return i18n.t('pay.Public account');
    case 14:
      return i18n.t('pay.cash');
    default:
      return i18n.t('pay.other');
  }
}

/**
 * 获取充值方式
 * @returns {VueI18n.TranslateResult}
 */
export function getPayTypeList(){
  return [
    {'type': 11, 'name': i18n.t('pay.wechatPay')},
    {'type': 12, 'name': i18n.t('pay.AliPay')},
    {'type': 13, 'name': i18n.t('pay.Public account')},
    {'type': 14, 'name': i18n.t('pay.cash')},
  ];
}
